NEET BIOLOGY

Detailed explanation-1: -When a trait has three or more distinct alleles, we refer to it as having multiple alleles inheritance. The human ABO blood type alleles/trait is an example of a trait with multiple alleles. Three distinct alleles exist: allele A (IA), allele B (IB), and allele i (IO or i).

Detailed explanation-2: -When there are more than two alleles controlling the same character. These are called multiple alleles.

Detailed explanation-3: -A diploid cell contains any of the two alleles, one each on the homologous chromosomes and a haploid cell contains only one allele. When a trait is governed by multiple alleles it is called multiple allelism.

Detailed explanation-4: -Multi-allele traits have more than two alleles at a population level, although individuals still only get one from each parent. These alleles may exhibit classic dominance, they may mask each other, they may add to or subtract from each other, or some combination of these effects.

Detailed explanation-5: -When numerous alleles are involved in the expression of a trait, a variety of dominance patterns emerge. In some circumstances, one of the alleles is entirely recessive to others and is disguised by any dominant alleles. Other alleles can be co-dominant, displaying their traits in their phenotypes in equal amounts.